You know what else I loved? (And sorry for spamming you AGAIN, but like I said, I'm going through screenshots, and it makes me wanna yak my head off.)

That scene where Sam gets angry at the guide and almost reveals what they're dealing with, and the guide says something nasty to Sam, and it's Dean who gets defensive.

I just love Dean's whole...presence in this episode. He seems to be almost pure Dean this episode, the big brother, the hunter, and just himself. As the series goes on, he has more and more to deal with, more to worry about, but in this ep, even though Jess has just been killed and their dad is missing, he has so much less to worry about than he will later on.